Modelling Of Mist Reactor: Effect Of Packing Fraction And Film Thickness On The Growth Of Hairy Roots

2013 ◽  
Author(s):  
Manish Vashishtha ◽  
Kumar Saurabh
Keyword(s):  
Film Thickness ◽  
Hairy Roots ◽  
Packing Fraction ◽  
Mist Reactor

Production of mouse interleukin-12 is greater in tobacco hairy roots grown in a mist reactor than in an airlift reactor

2009 ◽  
Vol 102 (4) ◽  
pp. 1074-1086 ◽  
Author(s):  
Chunzhao Liu ◽  
Melissa J. Towler ◽  
Giuliana Medrano ◽  
Carole L. Cramer ◽  
Pamela J. Weathers
Keyword(s):  
Hairy Roots ◽  
Airlift Reactor ◽  
Interleukin 12 ◽  
Tobacco Hairy Roots ◽  
Mist Reactor

Sustained operation of nutrient mist reactor to grow hairy roots

2011 ◽  
Vol 6 (1) ◽  
pp. 23-28 ◽  
Author(s):  
Ritu Ranjan ◽  
Rajesh Khanna ◽  
B. N. Mishra
Keyword(s):  
Hairy Roots ◽  
Sustained Operation ◽  
Mist Reactor

Surface Films on Zircaloy-2 Samples Cracked in Neutral Aqueous NaCl by Stress Corrosion

1973 ◽  
Vol 31 ◽  
pp. 46-47
Author(s):  
R.A. Ploc
Keyword(s):  
Electron Microscopy ◽  
Transmission Electron Microscopy ◽  
Film Thickness ◽  
Stress Corrosion ◽  
Zirconium Dioxide ◽  
Surface Film ◽  
Surface Films ◽  
Continuous Layer ◽  
Transmission Electron ◽  
Product Film

Samples of low-nickel Zircaloy-2 (material MLI-788-see(1)), when anodically polarized in neutral 5 wt% NaCl solutions, were found to be susceptible to pitting and stress corrosion cracking. The SEM revealed that pitting of stressed samples was occurring below a 2000Å thick surface film which behaved differently from normal zirconium dioxide in that it did not display interference colours. Since the initial film thickness was approximately 65Å, attempts were made to examine the product film by transmission electron microscopy to deduce composition and how the corrosion environment could penetrate the continuous layer.

(111) Monocrystalline Nickel Films

1972 ◽  
Vol 30 ◽  
pp. 512-513
Author(s):  
T.E. Pratt ◽  
R.W. Vook
Keyword(s):  
Film Thickness ◽  
Deposition Rate ◽  
Room Temperature ◽  
Narrow Range ◽  
High Vacuum ◽  
Residual Pressure ◽  
Temperature Dependent ◽  
Deposition Parameters ◽  
Transmission Electron ◽  
Substrate Temperatures

(111) oriented thin monocrystalline Ni films have been prepared by vacuum evaporation and examined by transmission electron microscopy and electron diffraction. In high vacuum, at room temperature, a layer of NaCl was first evaporated onto a freshly air-cleaved muscovite substrate clamped to a copper block with attached heater and thermocouple. Then, at various substrate temperatures, with other parameters held within a narrow range, Ni was evaporated from a tungsten filament. It had been shown previously that similar procedures would yield monocrystalline films of CU, Ag, and Au.For the films examined with respect to temperature dependent effects, typical deposition parameters were: Ni film thickness, 500-800 A; Ni deposition rate, 10 A/sec.; residual pressure, 10-6 torr; NaCl film thickness, 250 A; and NaCl deposition rate, 10 A/sec. Some additional evaporations involved higher deposition rates and lower film thicknesses.Monocrystalline films were obtained with substrate temperatures above 500° C. Below 450° C, the films were polycrystalline with a strong (111) preferred orientation.

The method of replication affects metal film granularity and resolution

1989 ◽  
Vol 47 ◽  
pp. 708-709
Author(s):  
George C. Ruben
Keyword(s):  
Electron Beam ◽  
High Resolution ◽  
Film Thickness ◽  
Single Molecule ◽  
Metal Film ◽  
Vertical Surface ◽  
High Resolution Imaging ◽  
Controllable Factors ◽  
Resolution Imaging

Single molecule resolution in electron beam sensitive, uncoated, noncrystalline materials has been impossible except in thin Pt-C replicas ≤ 150Å) which are resistant to the electron beam destruction. Previously the granularity of metal film replicas limited their resolution to ≥ 20Å. This paper demonstrates that Pt-C film granularity and resolution are a function of the method of replication and other controllable factors. Low angle 20° rotary , 45° unidirectional and vertical 9.7±1 Å Pt-C films deposited on mica under the same conditions were compared in Fig. 1. Vertical replication had a 5A granularity (Fig. 1c), the highest resolution (table), and coated the whole surface. 45° replication had a 9Å granulartiy (Fig. 1b), a slightly poorer resolution (table) and did not coat the whole surface. 20° rotary replication was unsuitable for high resolution imaging with 20-25Å granularity (Fig. 1a) and resolution 2-3 times poorer (table). Resolution is defined here as the greatest distance for which the metal coat on two opposing faces just grow together, that is, two times the apparent film thickness on a single vertical surface.

FILM THICKNESS DEPENDENCE OF HEAT TRANSMISSION INTO HELIUM

1981 ◽  
Vol 42 (C6) ◽  
pp. C6-825-C6-827
Author(s):  
P. Taborek ◽  
M. Sinvani ◽  
M. Weimer ◽  
D. Goodstein
Keyword(s):  
Film Thickness ◽  
Thickness Dependence ◽  
Heat Transmission

A COMPUTER INTEGRATED SPECTROPHOTOMETER FOR FILM THICKNESS MONITORING

1983 ◽  
Vol 44 (C10) ◽  
pp. C10-101-C10-104 ◽  
Author(s):  
H.-E. Korth
Keyword(s):  
Film Thickness

Menthol and geraniol biotransformation and glycosylation capacity of Levisticum officinale hairy roots

Planta Medica ◽  
2008 ◽  
Vol 74 (09) ◽  
Author(s):  
IS Nunes ◽  
AC Figueiredo ◽  
H Trindade ◽  
JB Barroso ◽  
LG Pedro
Keyword(s):  
Hairy Roots

A new method for quantifying the blocking of coated paperboard

TAPPI Journal ◽  
2010 ◽  
Vol 9 (5) ◽  
pp. 29-35 ◽  
Author(s):  
PAULINE SKILLINGTON ◽  
YOLANDE R. SCHOEMAN ◽  
VALESKA CLOETE ◽  
PATRICE C. HARTMANN
Keyword(s):  
Surface Roughness ◽  
Fatty Acid ◽  
Surface Energy ◽  
Film Thickness ◽  
External Factors ◽  
Additive Concentration ◽  
Pressure Surface ◽  
Fatty Acid Amides ◽  
Coated Surfaces ◽  
Definite Period

Blocking is undesired adhesion between two surfaces when subjected to pressure and temperature constraints. Blocking between two coated paperboards in contact with each other may be caused by inter-diffusion, adsorption, or electrostatic forces occurring between the respective coating surfaces. These interactions are influenced by factors such as the temperature, pressure, surface roughness, and surface energy. Blocking potentially can be reduced by adjusting these factors, or by using antiblocking additives such as talc, amorphous silica, fatty acid amides, or polymeric waxes. We developed a method of quantifying blocking using a rheometer. Coated surfaces were put in contact with each other with controlled pressure and temperature for a definite period. We then measured the work necessary to pull the two surfaces apart. This was a reproducible way to accurately quantify blocking. The method was applied to determine the effect external factors have on the blocking tendency of coated paperboards, i.e., antiblocking additive concentration, film thickness, temperature, and humidity.

Sign in / Sign up

Export Citation Format

Share Document